1) Describes a female’s ass, while standing, you could set a beer can on it. Generally found on Afro-American women. Although their asses are nice, a beercan is rarly found on white, hispanic, or asian women.
2) The obvious - a can used to hold a fermented liquid made of hops and barley.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.